Insufficient Product Hardness/Too Soft

The product hardness and strength are below the design values. This problem is relatively common in casting molding production and requires comprehensive analysis and solution from multiple aspects of materials, processes, and equipment.

(1) In terms of formula control: insufficient amount of curing agent or incomplete curing, component ratios deviating from design values lead to abnormal chemical reactions or physical states. (2) In terms of formula control: the ratio of resin to curing agent deviates from stoichiometry, component ratios deviating from design values lead to abnormal chemical reactions or physical states. (3) In terms of formula control: excessive amount of plasticizer or diluent, component ratios deviating from design values lead to abnormal chemical reactions or physical states.

(1) Implementation measures: accurately proportion the resin and curing agent according to stoichiometry, formulate a specific operation plan based on actual production conditions and verify the implementation effect. (2) Implementation measures: ensure full curing, formulate a specific operation plan based on actual production conditions and verify the implementation effect. (3) Process control: reasonably control the addition amounts of plasticizer and diluent., establish an online monitoring mechanism, set upper and lower parameter limits, and implement alarm management. (4) Preventive measures: establish a complete process control standard and quality inspection system, and regularly review process data for continuous optimization.

This problem requires comprehensive analysis from multiple dimensions of materials, processes, equipment, and operation, and should be solved by systematically optimizing process parameters and the quality control system.